/*
 * Copyright:  2018 smarabbit studio.
 *
 *  Licensed under the Confluent Community License; you may not use this file
 *  except in compliance with the License.  You may obtain a copy of the License at
 *
 *  http://www.confluent.io/confluent-community-license
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 *  WARRANTIES OF ANY KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations under the License.
 *
 *  @作   者： 黄开晖 (117227773@qq.com)
 *  @日   期:  2020年9月3日
 */
package com.massyframework.beanskin.service;

import java.util.Objects;

/**
 * 服务事件的基类
 */
public abstract class ServiceEvent<S> {

    private final ServiceReference<S> reference;

    /**
     * 构造方法
     * @param reference 服务引用
     */
    public ServiceEvent(ServiceReference<S> reference) {
        this.reference = Objects.requireNonNull(reference, "reference cannot be null.");
    }

    /**
     * 服务引用
     * @return
     */
    public ServiceReference<S> getServiceReference(){
        return this.reference;
    }

    /* (non-Javadoc)
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        return this.getClass().getSimpleName() + " [reference=" + reference + "]";
    }
}

